Molding device.



No. 796,641. PATENTED AUG. 8, 1905. J. P. HALL.

MOLDING DEVICE.

APPLICATION FILED 0OT.28,1904- 3 BHEETSSHEET 1.

BY cf wdf f ATTORNEY wnzw 1814mm cu, pnomumusnmcns. wnmnuvon n c.

No. 796,641. PATENTED AUG. 8, 1905. J. P. HALL.

v MOLDING DEVICE.

APPLICATION FILED OUT. 28,1904.

8 SHEBTSSHEET 3.

7 8 ggflm 4 4 I 6,

RNEY

UNITED STATES PATENT OFFICE.

MOLDING DEVICE.

Specification of Letters Patent.

Patented Aug. 8, 1905.

Application filed October 28, 1904:. Serial No. 230,293.

To all whom it may concern.-

Be it known that I, JAMES P. HALL, a citizen of the United States,residing at Jersey City, in the county of Hudson and State of NewJersey, have invented certain new and useful Improvements in MoldingDevices; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawingsand to numerals of referencemarked thereon, which form a part of this specification.

The present invention relates to a novel device or apparatus to be usedfor the purposes of molding or forming plastic and other suitablematerials or matter into the forms of arch-stones or bricks to be usedin arches in the building arts; and, furthermore, this invention relatesto a novel device or appliance in the form of an adjustable mold inwhich concrete blocks and bricks made from amixture of sand or any othersuitable material can be molded into shape for use in arches of thevarious kinds.

The principal object of this invention is to provide a simple, cheap,and efficiently-constructed molding device, formed with adjustablepartition-plates, which may be arranged to provide a number ofmolding-compartments to be adjusted and then set by the operator upon amolding board, table, or bed for the forming or molding of the brickssuitable for the various sizes and shapes of the arches for which thebricks are intended.

A further object of the present invention is to provide a device whichcan be easily' manipulated to produce in rapid succession bricks of therequired sizes and correct shapes at a great reduction of time andexpense in the manufacture of the brick and at the same time producing alabor-saving device.

Other objects of this invention not at this time more particularlymentioned will be clearly understood from the following detaileddescription of the said invention.

With the various objects of my present invention in view the sameconsists in the novel molding device or apparatus hereinafter set forth;and, furthermore, this invention consists in the various arrangementsand combinations of parts, as well as in the details of the constructionof the same, all of which will be hereinafter more particularlydescribed and then finally embodied in the clauses of the claim, whichare appended to and form an essential part of the said specification.

The invention is clearly illustrated in the accompanying drawings, inwhich Figure 1 is aplan or top view of a molding device embodying thefeatures of my present invention, showing the radial compartments of thesame in their adjusted and fixed positions with the material moldedtherein; and Fig. 2 is a front view of the same looking in the directionof the arrow x in said Fig. 1. Fig. 3 is a transverse vertical sectionin detail and on an enlarged scale, said section being taken on line 3 3in said Fig. 1 looking in the direction of the arrow Fig. i is a detailview of certain parts of the molding device, partly in plan and partlyin horizontal section, with the parts represented in their initial andnormally inoperative positions; and Fig. 5 is a face viewof the samelooking in the direction of the arrow .2 in said Fig. 4. Fig. 6 is adetail view in plan of a modified arrangement of the same partsrepresented in said Fig. 4; and Fig. 7 is a face view of the same,similar to that represented in said Fig. 5. Fig. 8 is a side elevationof one of the dividing partition plates or walls and a transversesection of the retainingplate of the molding device; and Fig. 9 is asimilar view of the same parts, but of a slightly-modified form ofconstruction. Fig. 10 is a top view of a molding-board and a portion ofthe retaining-plate and connected partition plates or walls with a topview of one form of centering device or bar for setting each partitionplate or wall in its operative and radially fixed position upon themoldingboard, and Fig. 11 is a side view of said centering device in itsdetached relation. Fig. 12 is a top view of a portion of a molding-boardprovided with a molding device or appliance of a slightlymodifiedarrangement, showing its application for the purposes of molding brickswhich are to be used in a straight or flat arch.

Similar characters of reference are employed in the above-describedviews to indicate corresponding parts.

The device or appliance to be hereinafter more particularly describedmay be used for the molding of arch-stones or bricks such as are used inthe building of arches of the various kinds, whether for semicircular,segmental, elliptical, pointed, flat, cambered, or inverted arches, andthe like; but for the sake of illustration I have shown my novel devicein use for molding only the bricks which are employed in circular andflat arches.

Referring now to the several figures of the drawings, the referencecharacter 1 indicates any suitable molding board, table, or bed uponwhich and with which the molding device or appliance embod-yingtheprinciples of this in vention is to be used substantially in the mannerto be presently described. The said molding board or table 1 ispreferably made with a center 2 in the form of a small hole ordepression and with a center line 3 extending from edge to edge of thesaid board, table, or bed.

Of course it will be understood that with the different shapes of bricksto be molded for different arches the positions of the centers 2 and thecenter lines 3 will vary, and, in fact, the center 2 and center line 3may be entirely omitted, if desired.

The molding device or appliance proper comprises a suitable back orretaining-plate 4, made from a flexible sheet metal or other materialsuitable for the purposes of this invention. This flexibleretaining-plate or back 4 is provided with suitably-disposed holes orperforations 5, preferably of the funnel shape shown in Figs. 4 and 5,in which are looselyarranged correspondingly-located holding orretaining pins or lugs 7, which extend rearwardly from the narrow edgesof suitable partition plates or walls 6. Each holding or retaining pinor lug 7 is provided with a screw-thread and has arranged thereon a nut8 of any suitable construction, said nuts, however, being preferably theusual thumb-nuts, as shown in the drawings. Each partition plate or wall6, which may be made of any suitable material, either metal, glass,wood, composition, or the like, is provided upon the lower portion ofits opposite narrow edge with a lug or member 9, having a pin or nailreceiving hole or perforation 10, substantially as shown and for thepurposes to be presently described. In lieu of the partition plates orwalls 6, provided with the integral holding or retaining pins or lugs 7,suitable partition plates or walls 11 may be employed, the same beingformed with the receivingslots 12, having the enlarged open parts 13, inwhich are arranged correspondingly-made pins 14, having their flat heads15 fitted in said open parts 13- of the slots 12 to prevent longitudinaldisplacement. These pins 14 are also made with screw-threads and areadapted to be arranged in the holes or perforations 5 of the back orretaining-plate 4, being provided with the nuts 8 in the mannerhereinabove described. Lateral displacement of the said retaining-pinsfrom the receiving-slots 12 in the partition-plates 11 may be preventedby an arrangement of pins 14, as indicated in dotted outline in saidFig. 9 of the drawings. The main portions of the plates which form thesepartitions or walls hereinabove mentioned are of the length and heightof the brick desired, and when connected with the said back orretaining-plate 4 the said partition plates or walls are located suchdistances apart that the space between two consecutively-placedpartition-plates will be equal to the width of the brick. 1n arrangingthe said molding device or appliance upon the molding board, table, orbed 1 when it is desired to produce the bricks for a semicircular arch(see Fig. 1 of the drawings) the two end partition plates or walls 6 areplaced directly upon the center line 3 the required distance apart,according to the size of arch desired, with the flexible back orretaining-plate 4 bentin a semicircle, as shown. The two end partitionplates or walls 6 are then securely fastened upon the board, table, orbed 1 by inserting a pin, nail, or screw, as 16, in the receiving holesor perforations 10 of the lugs or members 9 0f the respectivepartitionplates, the said pins, nails, or screws 16 being firmly driveninto the molding board, table, or bed. The nuts 8 upon thescrew-threaded holding or retaining pins 7 of the said partition platesor walls are then drawn up tightly, and the said back or retaining-plate4 is then held in the fixed position indicated in Figs. 1 and 4 of thedrawings, with the remaining partition-plates 6 loosely extending fromthe inner curved surface of the said plate, as clearly indicated in saidFig. 4 of the drawings. To arrange and secure the remaining partitionplates or walls 6 in their fixed positions upon the molding board,table, or bed 1 on radial lines of a circle whose center is the centeror depression 2 and whose circumference is the circularly-bent plate 4,I employ a suitable centering device. (Shown in Figs. 10 and 11 of thedrawings.) Any suitable centering device maybe employed, the said deviceshown in the accompanying drawings comprising a post 17, having a screwend or pin 18, which is driven into the center or depression 2. Thispost 17 is practically of the heightof the said partition plates orwalls 6 and is provided upon its upper end with a pivot or stud 19.Loosely arranged upon this pivot or stud 19 is the perforated end 21 ofa rod or bar 20, which is provided upon its opposite end portion with aguide or other holding portion 22, preferably an inverted letter U incross-section. This guide or holding portion 22 is arranged upon theupper edge of a loosely-connected partition plate or wall 6, whereby thepartition-plate is radially centered and is then secured in its fixedposition by driving apin, nail, or screw 16 through the hole 10 in thelug or member 9 into the board, table, or bed 1 and then tightening thenuts 8, connected with the screw-threaded pins 7 of the said partitionplate or wall 6, as will be clearly understood. In this manner all ofthe said partition plates or Walls 6 can be radially secured in theirfiXed positions, as will be clearly evi' dent. A flexible plate 23, ofsheet metal or other suitable material, is then placed upon the upperedges 24 of the said lugs or members 9 and against thecircularly-disposed vertical edges 25 of the several partition plates orwalls 6, as clearly illustrated in Figs. 1, 2. and 3 of the drawings.That the said plate 23 will be retained in its curved relation againstthe said edges 25 of the partition plates or walls 6 the end portions 26of the said plate 23 are passed through correspondingly-formed slots oropenings 28 in a pair of posts 27, which are secured upon the board,table, or bed 1 in the positions shown in said Figs. 1 and 2 of thedrawings, the said end portions 26of the said plate 23 being securelyheld in place by means of one or more setscrews 29, connected with thesaid posts 27. Of course it will be understood that any other suitablyarranged and other suitably constructed fastening devices may beemployed, if desired. I

When all the parts have thus been assembled in their fixed positionsupon the molding board, table, or bed 1, a molding device is producedhaving a number of radially-disposed pockets or chambers, all alike andof a trapezoidal cross-area, in which the material to be molded intoarch-stones or bricks is then placed and tamped and then removedtherefrom to be dried or baked in the usual manner. Thus arch-stones orbricks are produced with a device of this character which can be readilyassembled to provide the desired arch with all the joints between thestones or bricks perpendicular to the soffit or intrados of the arch. Ifdesired, the voussoirs or arch-stones may be made, as shown at the righthand of Fig. 1, so as to provide full and half bricks by forcingsuitably-disposed crosspieces 30, of sheet metal or other suitablematerial. down into the mixture in said pockets, or where said crossjoints are what are termed blind joints said cross-pieces are made ofnarrow widths and are forced but part way into the material, asindicated in the sectional representation in Fig. 3 of the drawings, toproduce such result. From an inspection of said Fig. 1 of the drawingsit will be seen that the outer marginal end surfaces of the finishedbricks on account of the curved arrangement of the retaining-plate 4will be correspondingly curved, and when it is desired to providearch-stones or bricks having the usual fiat or straight ends theninstead of the back or retaining-plate 4 I may use a device of thecharacter shown more particularly in Figs. 6 and 7 of the drawings. Inthis device the said back or retaining-plate is made up of a number ofsmall plates or sections 31 of the width of the brick desired, the saidplates or sections 31 being provided with hinge members or pivot-lugs32, whereby the said plates or sections 31 can be movably connected inthe manner of the leaves or plates of hinges and are capable of anarrangement upon the molding board, table, or bed 1 in a similar mannerto the device previousl y described, the back or retaining-plate insteadof being arranged in the arc of a circle forming the angular sides of apolygon, as will be clearly evident. The various partition plates orwalls are connected with the said hinged sections or plates 31 by havingtheir screw-threaded pins 7 projecting from between the joints formed bythe chamfered edges 33 of the adjacent sections or plates 31 and thevarious parts being fixed in their operative positions upon the board,table, or bed 1 by means of the pins, nails, or screws 16 and the nuts 8in the same manner previously described in the construction of thedevice represented in said Figs. 1 to 6, inclusive.

When the molding apparatus is to be used for the forming or molding ofthe bricks or arch-stones for a fiat or straight arch, partition-plates34 of various lengths are used with a back or retaining-plate 35, withwhich such partition-plates are movably connected in the mannerpreviously described and can be secured in their fixed positions uponthe molding board, table, or bed 1 by means of the pins, nails, orscrews 36, which are passed through the perforated lugs 37 of saidpartition-plates in the manner hereinabove set forth and as will beclearly understood from an inspection of Fig. 12 of the drawings. Thesaid back or retaining-plate 35 is arranged in a straight line upon thesaid board, table, or bed 1, and the said partition-plates 3 1 arearranged at such angles to the said plate 35 that they will be locatedon imaginary lines which radiate from a common center, the saidpartition-plates 34: being properly located with the use of a centeringrod or bar 20, similar to that shown in Figs. 10 and 11 of the drawings. A straight plate 38 is then arranged upon the lugs 37 of thepartition-plates 3 1 and secured in place by means of the retaining orholding posts 27, all in the manner shown in said Fig. 12, the saidposts 27 being of a construction similar to that of the posts 27represented in Figs. 1, 2, and 3 of the drawings.

From the foregoing description of my invention it will be seen that Ihave devised a simply constructed and easily manipulated molding devicewhich can be quickly arranged in various positions upon a molding board,table, or bed for producing molding-compartments in which the arch-stoneor bricks for the several kinds of arches can be easily and correctlyformed.

I am aware that some changes may be made in the arrangements andcombinations of the devices and parts comprising my present invention,as well as in the details of the construction of the said parts, withoutdeparting from the scope of this invention. Hence I do not limit myinvention to the exact arrangements and combinations of the devices andparts as described in the foregoing specification and. as illustrated inthe accompanying drawings; nor do 1 confine myself to the exact detailsof the constructionsof the parts thereof.

Having thus described my invention, What I claim is 1. A molding deviceto be used With a molding board, table or bed, comprising a back orretaining plate, partition plates connected With said retaining-plate, aperforated lug extending from each partition-plate, and a fastening-pinin each lug for securing said partitionplates in fixed positions uponthe molding board, table or bed, substantially as and for the purposesset forth.

2. A molding device to be used with a molding board, table or bed forthe forming of arch-stones or bricks, comprising a flexible back orretaining-plate adapted to be arranged in the form of an are upon saidboard, table or bed, partition-plates connected With saidretaining-plate, a perforated lug extending from each partition-plate,and a fastening-pin in each lug for securing said partition-plates infixed positions upon the molding board, table or bed on lines radiatingfrom a common center, substantially as and for the purposes set forth,

3. A molding device to be used With a molding board, table or bed forthe forming of arch-stones or bricks, comprising a flexible back orretaining-plate adapted to be arranged in the form of an are upon saidboard, table or bed, partition-plates connected With saidretaining-plate, means for securing the said partition-plates in fixedposition upon the molding board, table or bed on lines radiating from acommon center, a plate arranged against the end edges of the saidpartitionplates, and means in engagement With the end portions of saidplate for securing said plate in position, substantially as and for thepurposes set forth.

4:. A molding device to be used With a molding board, table or bed forthe forming of arch-stones or bricks, comprising a flexible back orretaining-plate adapted to be arranged in the form of an are upon saidboard, table or bed, partition-plates connected With saidretaining-plate, means for securing the said partition-plates in fixedpositions upon the molding board, table or bed on lines radiating from acommon center, a plate arranged against the end edges of the saidpartitionplates, and, means in engagement With the end portions of saidplate for securing said plate in position, consisting, essentially, ofscrew-posts, each screw-post having a slot in Which an end portion ofsaid plate is arranged, and a set-screw for securing said end portionsin position in the slots of the screw-posts, Substantially as and forthe purposes set forth.

5. A molding device to be used with a molding board, table or bed forthe forming of arch-stones or bricks, comprising a flexible back orretaining-plate adapted to be arranged in the form of an are upon saidboard, table or bed, partition-plates connected with saidretaining-plate, a perforated lug extending from each partition-plate, afastening-pin in each lug for securing said partition-plates in fixedpositions upon the molding board, table or bed on lines radiating from acommon center, a plate arranged upon the said lugs and against the endedges of the said partitionplates, and means in engagement With the endportions of said plate for securing said plate in position,substantially as and for the purposes set forth.-

6. A molding device to be used With a molding board, table or bed forthe forming of arch-stones or bricks, comprising a flexible back orretaining-plate adapted to be arranged in the form of an are upon saidboard, table I or bed, partition-plates connected With saidretaining-plate, a perforated lug extending from each partition-plate, afastening-pin in each lug for securing said partition-plates in fixedpositions upon the molding board, table or bed on lines radiating from acommon center, a plate arranged upon the said lugs and against the endedges of the said partitionplates, and means in engagement With the endportions of said plate for securing said plate in position, consisting,essentially, of screw-posts, each screw-post having a slot in Which anend portion of said plate is arranged, and a set-screw for securing saidend portions in position in the slots of the screw-posts, substantiallyas and for the purposes set forth.

7. A molding device to be used With a molding board, table or bed forthe forming of archstones or bricks, comprising a back orretaining-plate having perforations, a series of partition-plates,screw-threaded holding-pins extending from each partition-plate andnormally loosely arranged in perforations of said retaining-plate, nutson the projecting ends of said holding-pins for rigidly connecting thepartition-plates to said retaining-plate, and means upon the oppositeends of said partition-plates for securing them in their fixed positionsupon the molding board, table or bed, substantially as and for thepurposes set forth.

8. A molding device to be used With a mold ing board, table or bed forthe forming of archstones or bricks, comprising a back orretaining-plate having perforations, a series of partition-plates,screw-threaded holding-pins extending from each partition-plate andnormally loosely arranged in perforations of said retaining-plate, nutson the projecting ends of said holding-pins for rigidly connecting thepartition-plates to said retaining-plate, a perforated lug extendingfrom each partitionplate, and a fastening-pin in each lug for securingsaid partition-plates in fixed positions upon the molding board, tableor bed, substantially as and for the purposes set forth.

9. A molding device to be used with a molding board, table or bed forthe forming of archstones or bricks, comprising a back orretaining-plate having perforations, a series of partition-plates,screw-threaded holding-pins extending from each partitionplate andnormally loosely arranged in perforations of said retaining-plate, nutson the projecting ends of said holding-pins for rigidly connecting thepartition-plates to said retaining-plate, means upon the opposite endsof said partition-plates for securing them in their fixed positions uponthe molding board, table or bed, a plate arranged against the end edgesof the said partition-plates, and means in engagement With the endportions of said plate for securing said plate in position,substantially as and for the purposes set forth.

10. A molding device to be used With a molding board, table or bed fortheforming of archstones or bricks, comprising a back or retaining-platehaving perforations, a series of partition-plates, screw-threadedholding-pins extending from each partition-plate and normally looselyarranged in. perforations of said retaining-plate, nuts on theprojecting ends of said holding-pins for rigidly connecting thepartition-plates to said retaining-plate, a perforated lug extendingfrom each partitionplate, a fastening-pin in each lug for securing saidpartitionplates in fixed positions upon the molding board, table or bed.a plate arranged upon the said lugs and against the end edges of thesaid partition-plates, and means in engagement With the end portions ofsaid plate for securing said plate in position, substantially as and forthe purposes set forth.

11. In amolding appliance, the combination, With a molding board, tableor bed, of a molding device comprising a back or retainingplate,partition-plates movably connected With said back or retaining-plate, acentering device on said molding board, table or bed adapted to bebrought in engagement With said partition-plates for arranging them onlines radiating from a common center, and means for securing thecentered partition-plates in fixed positions upon the molding board,table or bed, substantially as and for the purposes set forth.

12. In a molding appliance, the combination, with a molding board, tableor bed, of a molding device comprising a back or retainingplate,partition-plates movably connected With said back or retaining-plate, acentering device on said molding board, table or bed adapted to bebrought in engagement with said partition-plates for arranging them onlines radiating from a common center, a perforated lug extending fromeach partition-plate, and a fastening-pin in each lug for securing saidpartition-plates in fixed positions upon the molding board, table orbed, substantially as and for the purposes set forth.

13. Inamolding appliance, the combination, With a molding board, tableor bed, of a molding device comprising a back or retainingplate,partition-plates movably connected with said back or retaining-plate, acentering device on said molding board, table or bed adapted to bebrought in engagement With said partition-plates for arranging them onlines radiating from a common center, means for securing the centeredpartition-plates in fixed positions upon the molding board, table orbed, a plate arranged against the end edges of the saidpartition-plates, and means in engagement With the end portions of saidplate for securing said plate in position, substantially as and for thepurposes set forth.

14:. In a molding appliance, the combination, With a molding board,table or bed, of a molding device comprising a back or retainingplate,partition-plates movabl y connected with said back or retaining-plate, acentering device on said molding board, table or bed adapted to bebrought in engagement With said partition-plates for arranging them onlines radiating from a common center, a perforated lug extending fromeach partition-plate, a fastening-pin in each lug for securing saidpartitionplates in fixed positions upon the molding board, table or bed,a plate arranged upon the said lugs and against the end edges of thesaid partitionplates, and means in engagement With the end portions ofsaid plate for securing said plate in position, substantially as and forthe purposes set forth.

In testimony that I claim the invention set forth above I have hereuntoset my hand this 26th day of October, 1904.

JAMES P. HALL.

Witnesses:

FREDK. C. FRAENTZEL, GEO. D. RICHARDS.

